var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var signin = require('./routes/signin');
var login = require('./routes/login');
var session = require('express-session');
var app = express();
// const session = require('express-session');

app.use(session({
    secret: '12345',
    // name: 'testapp',   //这里的name值得是cookie的name，默认cookie的name是：connect.sid
    cookie: {maxAge: 80000},  //设置maxAge是80000ms，即80s后session和相应的cookie失效过期
    resave: false,
    saveUninitialized: true
}))
app.all('*', function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "http://localhost:3003");
    res.header('Access-Control-Allow-Credentials', true);
    res.header("Access-Control-Allow-Headers", "Content-Type,Content-Length, Authorization, Accept,X-Requested-With");
    res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
    res.header("X-Powered-By",' 3.2.1')
    if(req.method=="OPTIONS") res.sendStatus(200);/*让options请求快速返回*/
    else  next();
});

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/signin', signin);
app.use('/login',login);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
